• When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Just another 505 build

Schober Motorsports

Well-Known Member
Local time
6:07 PM
Joined
Jun 20, 2010
Messages
482
Reaction score
388
Location
Drag Strip
Hey guys,

Finally wrapping up this project as I see the racing season fly by me... Curious on what you guys think it'll run... Hoping to start it up next weekend as I get the rest of the car wired back up!

505 CID
264 IN/274 EX DUR @ .050
.620 IN/.643 EX - Solid Flat Tappet
Installed @ 108 CL
Stock (Ya I know...) 452 Iron's
11-1 compression ratio
5200 stall 9" Converter
Single Plane TM7
750 Carb (Under carbed, but its what I got for now...)
Running 4.11's out back.
Car weighs 3700.

Any advice or thoughts with first time start would also be appreciated!

IMG_0632.JPG
IMG_0633.JPG
13588895_10205215294342289_45494595_o.jpg
IMG_0640.JPG

IMG_0664.JPG
 
Congrats, Looks pretty nice too...

video of her running/pref. making a run next ?
 
nice looking unit . may not be quite enough cam duration wise , definitely not enough carb .
1 day my 505 will be ready , I am going 272-276@050 range cam with mid 600 lift .
I already have a Eddy victor , Prosystems HP1000 carb on my 440ci plus I also have a 1050 dom to try
I am aiming for 10.50's , will need 615-650 HP .
Tex
 
I hope you've done a fair amount of grinding on the 452's. They can provide the flow needed for the 600 + HP if properly ported. I had great results from my TM7. Maybe not the equal of a Victor but... The small carb won't hurt much, especially when combined with the TM7. Intakes & carbs are easy enough to change when the time comes.
Good luck, keep us informed.
 
The heads & carb will restrict it some, but it definitely should leave hard. I would start the shifts somewhere around 5500-5600, with the 452s & 750 i don't think you'll gain much shifting past 5800-6000. my .02
 
Hey guys,

Finally wrapping up this project as I see the racing season fly by me... Curious on what you guys think it'll run... Hoping to start it up next weekend as I get the rest of the car wired back up!

505 CID
264 IN/274 EX DUR @ .050
.620 IN/.643 EX - Solid Flat Tappet
Installed @ 108 CL
Stock (Ya I know...) 452 Iron's
11-1 compression ratio
5200 stall 9" Converter
Single Plane TM7
750 Carb (Under carbed, but its what I got for now...)
Running 4.11's out back.
Car weighs 3700.

Any advice or thoughts with first time start would also be appreciated!
Make sure you have fuel and spark before you hit the key. Make sure the distributor is in correctly and not 180 out and most importantly, run the dogsnot out of it and have fun!
 
I would guess 11.1 or 11.2 or so....u need bigger heads,carb, cam and intake to go 10.70 or so. At 3700lbs u need 675HP to go 10.60 and that is a FACT...plus traction is needed...like CalTracs, monoleafs and 9 way Adj shocks....check out my 505 build (with std port heads and only 1.75 headers ) on this site...I am at 3640lbs with me and 5 gal gas and best time of 10.58 at 126... (at 3500 feet Adj altitude) In good air (1000 to 1200 feet) I now think I can go mid 10.40s at 128
 
The heads are the biggest choke point, power robbers...
Carb next...
Then the camshaft, but I've had less cam & done well...
"what goes in must come out", all 3 of those element will effect that...

Weight is always a factor, less weight faster it will go,
all about power to weight ratios
many times it's far cheaper/smarter to reduce weight,
than make more power too...

Making the car work 60ft as best you can, have parts that match you needs &
that work right together, then work on power for down track...
Seems many don't do or think of the car weight & suspension,
shocks, rotating mass, tire wheels etc.
Way too much concentration/focus on HP/Engine,
forgetting the other 1/2 of the equation...

Aero/keeping air out of places it doesn't belong, helps too...

We'll see what you run 1st...

There's a bunch of "alleged" 700-1000 hp guys, that can't run the #'s they should too...
It's about everything working together, not just one aspect...

Good luck
 
Last edited:
The heads are the biggest choke point, power robbers...
Carb next...
Then the camshaft, but I've had less cam & done well...
"what goes in must come out", ball 3 of those element will effect that...

Weight is always a factor, less weight faster it will go,
all about power to weight ratios
many times it's far cheaper/smarter to reduce weight,
than make more power too...

Making the car work 60ft as best you can, have parts that match you needs &
that work right together, then work on power for down track...
Seems many don't do or think of the car weight & suspension,
shocks, rotating mass, tire wheels etc.
Way too much concentration/focus on HP/Engine,
forgetting the other 1/2 of the equation...

We'll see what you run 1st...

There's a bunch of 1000 hp guys, that can't run the #'s they should too...
It's about everything working together, not just one aspect...

Good luck
 
Yeah I actually added to my org. post 66sattelite47,
I went into more detail...
 
Budnicks is surely correct., lighter weight is a big help. If you can take weight out of the car, do it.
 
Hey guys,

Finally wrapping up this project as I see the racing season fly by me... Curious on what you guys think it'll run... Hoping to start it up next weekend as I get the rest of the car wired back up!

505 CID
264 IN/274 EX DUR @ .050
.620 IN/.643 EX - Solid Flat Tappet
Installed @ 108 CL
Stock (Ya I know...) 452 Iron's
11-1 compression ratio
5200 stall 9" Converter
Single Plane TM7
750 Carb (Under carbed, but its what I got for now...)
Running 4.11's out back.
Car weighs 3700.

Any advice or thoughts with first time start would also be appreciated!

View attachment 346932 View attachment 346933 View attachment 346935 View attachment 346934
View attachment 346936
I have no idea but it looks great!!!
 
The heads are the biggest choke point, power robbers...
Carb next...
Then the camshaft, but I've had less cam & done well...
"what goes in must come out", all 3 of those element will effect that...

Weight is always a factor, less weight faster it will go,
all about power to weight ratios
many times it's far cheaper/smarter to reduce weight,
than make more power too...

Making the car work 60ft as best you can, have parts that match you needs &
that work right together, then work on power for down track...
Seems many don't do or think of the car weight & suspension,
shocks, rotating mass, tire wheels etc.
Way too much concentration/focus on HP/Engine,
forgetting the other 1/2 of the equation...

Aero/keeping air out of places it doesn't belong, helps too...

We'll see what you run 1st...

There's a bunch of "alleged" 700-1000 hp guys, that can't run the #'s they should too...
It's about everything working together, not just one aspect...

Good luck
Short of a hemi or predator head, there's not too many big block mopar heads out there to support 1000 horsepower. As you stated, it's all about the combination. Mine doesn't run the numbers it should for the power it has mainly because of the 3.73 gears I run. A set of 4.56 gears would make one hell of a difference.
 
It'll have torque out the wazoo but it'll be out of cylinder head and defiantly carburetor pretty quick. I can understand using the heads if that's all that's in the budget but the carb is too small. Converter is a wild card, seems loose for the combo. Suppose it might work. I'll say 11.20-11.30 with the listed combo. Good luck, hope it runs what you want it too

Also use good oil like Joe Gibbs, prime oil pump right before start up and remove inner springs for break in. I just went through all this a few weeks ago with my 511 low deck.
 
Last edited:
I'm with the others that believe the heads and carb will restrict it. Thinking more mid 11.2's to 11.30(unless you have really wk'd the heads). At your weight I was 6.99(1/8th) w/a much smaller cam but better heads and bigger carb shifting at 5600. Had to add a roll bar(I'm now 3940) and running 7.12 at the same shift point. Hope to get it out and do some 1/4 runs this week.
Best of luck and keep us posted. The car looks killer(love the rims and color).
 
I presume you're running a 727. Torque converter is the key to good ET. Spend your money there. Dynamic, Coan, Cope, Turbo Action. Good luck, keep us informed.
 
I presume you're running a 727. Torque converter is the key to good ET. Spend your money there. Dynamic, Coan, Cope, Turbo Action. Good luck, keep us informed.
Bought it from FTI down here in Florida, they built it based off specs. Awesome guys to work with.
 
Auto Transport Service
Back
Top